Glareshield for automobile headlights



1,599,300 G. STEINGRUBER GLARESHIELD FOR AUTOMBILE HEDLIGHTS Sept. 7 1926.

Filed August 22, 1925 Patented: Sept. `7, 1.926.

or parabolic reiiector.

. apex of the bulb to the shank of the bulb.

UNITED STATESv 1,599,300 PATENT OFFICE..

GEORGE STEINGRUBER, OF ATLANTA, GEORGI.

GLAB'ESHIELD-` FOR AUTOMOBILE H:ElADLIG'IEII'IS.

Application filed August 22, 1925. Serial No. 51,783.

so that substantially the entire central body of the lamp is exposed for the reflection of the light rays therefrom into contact with the reiiector while the screen 'prevents the upward and outward rays which may not engage the reflector vsurface from being projected.

While these screens may be of a solid material still I have found it most desirilluminated surface easily viewed by the 3o :in the usual manner.

able to form them of a translucent material referably colored so that a .portion of the illuminating effect of the lamp passes through the screen and is so toned b the co or medium as to prevent glare 'an provide an 'operator `of an approaching machine. In the mounting of such spherical bulb screens difficulty has been foundin securing them improper position due to the vibration of the machine, and in order to effectually disi ose'the shield in proper position and secure it against any movement a shank is provided thereon which extends between the lamp and its socket andis provided with apertures for the ad'ustment of the screen u on the in of the l By this means the screen is held against any rotative .or longitudinal movement and by its disposition between the lamp and socket is Y firmly sus` tained against vibration, and the lamp itself is protected againstbreakage from the usual vibration due to loose fitting.

The invention has for an object to pro- `vide a spherical bulb screen havin a supporting shank at its rear and a li t intercepting portion above the apex o the bulb with a cut-away sector extending from said portion to the supporting shank at the real).

' A further object of the invention is to provide a spherical screen ada ted to be mounted upon a lamp bulb and ormed of a vscreen amp which' interlocks wit the soc et.

translucent material, thel rear of said screen being open to permit passage of light rays therefrom to the reflector.

Another-object of the invention is to provide an improved mounting for a bulb screen comprising a. shank adapted to be dis osed ybetween the lamp bulb and its l soc et and provided with Vmeans for interlocked connection with the bulb to prevent relative movement thereof.

Other objects and advantages of the in# vention will be hereinafter set forth and the novel featuresl thereof defined by the appended claims.

In-the drawings Figure l-is a horizontal screen in assembled. position;

Figure 2 is a vertical section of the same;y

" Figure 3 is a detail side elevation of the Figure 4f is a top plan thereof;

Figure 5 is a detail section of'theinterlocked connection between the screen and bulb socket; and

Figure 6 is a detail elevation of the screen shank in its relation to the locking pin of the bulb.

Like reference numerals designate corresponding parts throughouti'the several figures of the drawings.

The light screen is adapted for application to any desired form of lamp and reflector'but it is particularly designed for vuse in anhautomobile headlight where the usual conical or parabolic reiiector- 10 is used and the electric bulb 11 dis osed at substantially the axialvcenter thereof? The base 12 of this bulb is formed with thel usual' locking in 413 which engages in the slots 14:v ofthe soc et 15 which supports the lamp in' position.

The screen 16 is adapted to be supported between the base of the lamp and the socket and comprises a semi-spherical portion 17 at the front-which is projected inward upon a curved line 18 at its upper edge so as to cover-and shield the direct raysffromthe outer portion of the lamp which would otherwise be ,projected u ward and outward to effect 'a glare o jectionable and dangerous to an app'roachin operator or pedestrian. The portion 16 o the screen is extended inward to form a supporting shank 19 which is provided with a series of 'securing apertures 20 any one of which may be fitted over the pin 13 from thelamp base in the adjustment of the screen into proper section with. the l Q rennen van ne tait. This Shank is inserted between the lamp base and its socket and thus takes up the usual slack or loose- This screen is formed of non-reflective` material as it has been found that a reective action therefrom materially a'eots the proper direction of the light rays in focusing the-lamp so as to dispose them in a horizontal lane within a fixed elevation as required regulations. ile the screen may be formed of s'olid material, it is preferably constructed of a translucent material, such as celluloid, and may be suitably colored to tone the light rays passing therethrou h, in which event the body 17 intercepts su cient of the direct rays to prevent a glare but also becomes an illuminated surface from which colored rays are projected to the reflector and are visible when 4viewing the lamp from the front. The disposition of this body or shield portion is such that the filament of lthe lamp is'not visible to an observer-from any angle when facing the rellector.`

ile 'the specic construction of the screen and its attaching means have been shown and described, still the inventionv is not vconned thereto as changes and alterations may be made without departing from the spirit thereof as defined by the appended claims.

Having thus described my invention, what I cla' as new and desire to secure by Letters atent is 1. A glare screen comprising a'body hav, ing a semi-spherical screen,anda supporting shank extended radially from the rear of said body and constructed to be intery most automobile lighting incasso posed longitudinally between the base of a lamp bulb and its socket.

2. A glare screen comprising a body hav-- ing a semispherical screen and a support?` ing shank extended radially from the rear of said body and constructed to be internallybetween the 'base of a lamp bulb and its socket, said screen bei-ng extended forwardly to partially enclose the front of a lamp bulb. l

5. A screen for a lamp bulb provided with a light intercepting body anda shank -formed for longitudinal insertion between the base of the bulb and .the inner face of its socket, and means upon said shank and Ybase for adjustably connecting the shankl thereto.

6. In a headlight redactor, the combination with a lamp and its socket having interlocking pin connection, of a screen provided with a shank adapted to be disposed"be. tween the lamp and the inner wall of the socket and provided with an aperture to fit over said pin.

7. .A screen for a headlight bulb comprising a semi-spherical body and a curved attaching shank to enter the bulb socket and provided with a circumferential series of apertures9 said screen being cutaway between said body' and shank to expose a material yportion of the bulb to the enclosing reilector.

In testimony whereof l affix my signature croacia srnincansna. 

